Evaporator.



R. R. ROW. EVAPORATOR. APPLICATION FILED JUNE 7, 1912.

8 SHEETS-SHEET 1.

Patented, Mar. 16, 1915.

Q3 INVENTOR @0660 fin R. R. ROW.

EVAPORATOR.

APPLICATION FILED JUNE 7, 1912.

1 13L7380 Patented Max:161 1915.

3 SHEETS-SHEET 2.

(liuut i ATTORNEY- R. 11.30%. EVAPORATOR.

vAPPLICIATION FILED JUNE '7, 19 12. 1 1 31338, Patented Mar. 16,1915.

3 SHEETSSHEET 8.

W|TNESSESI I I |NVENTOR I fiucw Pal V ATTORNEYS REUBEN R. BOW, 0F JERSEY CITY, NEW JERSEY.

memes.

Specification of Letters Patent.

nvaroroa Patented Mar. 116, 1915.

Application filed June 7, 1912. Serial No. 262277.

To all whom it may concern 1 Be it known that I, REUBEN B. Row, a

citizen of, the United States, residing at.

' place, while the detrimental eflects of priming are avoided.

I attain high efficiency by confining ebullition to the vicinity of the heating surfaces, providing in this way an ebullition compartment and one or more separating compartments into which the priming contents of the ebullition compartments are discharged and in which separating compartments the condition of quiet necessary for the separation of the entrapped vapor from the liquidexists, and from which the vapor rises to an outlet and the liquid flows back to the bottom of the ebullition compartment. The mixed liquid and vapor primes from the upper end of the ebullition compartment.

into the separating compartment at what may be termed the inlet to the separating compartment, and separate outlets are pro vided from the separating compartment for the vapor and liquid. \Vhere it is attempted to return the separated liquid to the ebullition compartment by way of the inlet to the separating compartment through which the priming contents of the ebullition compartment enter, eflicient operation is prevented owing to the impedance of the circulation and the partial condensation of vapor by contact with the separated and partially cooled liquid. As the vapor outlet from the separating compartments should be at or near the top of the apparatus, and the priming from the ebullition compartment isupward, it is of great advantage to deflect the priming vapor and liquid into. the separatin compartment in a direction away from Sald outlet, and particularly downwardly, as the separation is thereby facilitated and the drip from the directing baflie is more easily prevented from reentering the ebullit1on compartment.

The adaptation of my invention to apparatus intended for marine installations has resulted in a structural arrangement which offers convenient accessibility to all interior parts for cleaning and repair, which arrangement I have illustrated in the accompanying drawings pointing out the novel features in connection with the description of the drawings and in the appended claims.

In the drawings Figure 1 is a vertical section at about lines l1 on Figs. 2 and 3;

Fig. 2 is a front View of my improved evap-.

orator showing parts of the door and casing broken away; Fig. 3 is a horizontal section on lines 33 of Figs. 1 and 2; Fig. 4 is an enlarged sectional detail of one manifold at thejuncture'therewith of a coil, and Fig. 5 is an enlarged view of a portion of a manifold and the end of a coil joined thereto; Fig. 6 is a vertical sectional view taken on line 6-6 of Fig. 7 illustrating a modified duplex form especially suitable for evaporators of large capacity; and Fig. 7 is a vertical section taken on line 7-7 of Fig. 6.

Referring to the form shown iii Figs. 1 to 3, an outer shell A, which may be in the form of an upright cylinder with crowns as shown, has an upright opening in its front side, the jamb flange B of which opening is provided with bolt holes I) or other suitable means for the steam-tight attachment thereto of a door C which completes the inclosing shel The inlet pipe for the admission of salt water or other solution to be evaporated is fitted into the flanged opening a, and a steam or vapor out-take pipe is fitted into the flanged opening D at the center of the upper crown.

flanged opening U is provided near the bottom for the reception of a blow-off valve. Horizontal steam manifolds F and G are flanged to the upper and lower portions respectively of the door C extending across the shell A from front to rear when the door is in place. The front ends of the manifolds F and G which extend outwardly through the door C are bent to one side and extended beyond the edge of the door and there bent backward and provided upon their ends with junction fianges f and g which lie in planes which are substantially parallel to the jamb of the door, and may be unseated from the steam supply and exhaust pipes simultaneously with the unseating of the door C from the shell A. The inner ends of the manifolds F and G are preferably connected by a spacing bar H.

Rollers I mounted upon studs projecting laterally from the upper portion of this bar H rest upon stationary rails 21 fixed within the shell A and support and guide thednner end of the carriage consistin of the door C and the manifolds F and (:r carrying the heating coils.

A caster J which rolls upon the floor or deck supports the door C through a bracket 0, an adjusting nut 7' being provided to regulate the height of the door from the floor that it may be accurately brought into position for attachment to the shell A.

Each of the manifolds is provided upon its opposite sides with cupped holes K for the reception of the conically flanged end of coiled pipes L and these cupped holes may be considered as an element of the quick attachable joint for the-coil ends shown in detail in Fig. 4.

Adjacent the holes K in the sides of the steam manifolds F and G, threaded holes are provided for the fixture of threaded studs and nuts m threaded upon these studs in are adapted to force a dog-flange M against a conical annulus Z lying behind the conically flanged end of the pipe L and effect a tight joint. and detachable joint forms the subject-matter of a patent No. 1020929 granted to me on March 19, 1912, and its employment in this structure is of peculiar advantage. The coils L are arranged in rows upon both sides of the manifolds F and G and their inherentelasticity not only renders them easily adjustable in their position but takes care of any unequal expansion effects that might oc-' cur. Upon the removal of the door the manifolds and the coils attached thereto are moved with it and can pass out through the door opening to give free access to both the coils and the interior of theshell for sealing.

Circular bafiles N and 0 located under the vapor outlet D are designed to intercept liquid particles suspended in the vapor passing to the outlet D and drain these llqllld particles toward the periphery of the shell.

Removable partitions P extend from the front to the rear wall of the shell A and from a point above the lower crown of the shell A and below the manifold G nearly to the upper ends of the coils L. These partitions P form a central compartment within which the heating coils L are located, and two outer compartments which communicate with the central compartment at the bottom of the shell and at a point aboutopposite the upper ends of the heating coils.

The partitions P rest in clips p on the wall of the shell A and need not be disturbed by This quick attachablewardly and downwardly into the outer com partments.

The operation of this form is as follows Salt water or other solution to be evaporated is fed to the shell A and its level maintained therein at a height at which the lower ends only of the coils L will be submerged.

steam is run through the coils L producing a violent ebullition of the liquid surrounding their lower ends and creating a rising current of liquid and entrapped vapor within the central compartment about the heating coils. The heating coils L offer such a large heating surface to the water confined about them that the violent ebullition necessary for high efliciency ensues within the central compartment and the contents of this compartment are projected upwardlv against the curved bafile Q and are deflected by this baflie outwardly and downwardlv into the outer compartments which contain no heating surfaces and in which comparatively quiet conditions exist. Here the violently priming liquid and vapor have an opportunity to separate, the liquid being projected and falling to the bottom and the vapor rising toward the top.

In apparatus wherein the unvaporized liquid particles fall back against the priming stream their retarding effect upon the rising froth materially interferes with the eflicient operation of the apparatus.

In Figs. 6 and 7, the duplex type of my apparatus used for large sizes is shown and the operation is substantially the same as that already described.

' The best efiiciency is attained by efiecting violent ebullition and separating the primage from the vapor in the same container and in the presence of the solution heated to a temperature approximating the boiling point. High efficiency for a given capacity requiresebullition so violent that it is seldom attained owing to priming into the delivery pipe while a separation of the primage at a pointdistant from the body of solution acted upon is accompanied by condenthe remaining part reduces condensation to a minimum and presents an opportunity for attaining perfect separation and circulation of the liquid in compact apparatus.

name

What-I claim is: 1. An evaporating apparatuscomprising the combination of an upright casing having an outlet atits upper end. andan opening in its side 'wall, a door-detachablycating with the latter at their upper and lower ends, heating elements mounted on the door and projecting within the ebullition compartment and removable from the ebullition compartment when the door is removed from the casing, a deflector mounted within the casing and above the heating elements for deflecting vapor rising within the ebullition compartment outwardly to the separating compartments and a baffle mounted within the casing between the deflector and said outlet; substantially as described.

2. An evaporating apparatus comprising the combination of an upright casing having an opening in its side Wall, a door detachably secured over said opening, partitions mounted within the casing and forming a central ebullition compartment and separating compartments at the sides of the ebullition compartment and communicating with the ebullition compartment at the upper and lower ends thereof, manifolds mounted on the door and projecting therefrom within the ebullition compartment, a plurality of heating coils extending between the manifolds, said door with the manifolds and heating coils thereon being removable from the casing, and a deflector mounted within the casing over the ebullition compartment for deflecting vapor rising within the ebullition compartment outwardly to the separating compartments: substantially as described.

3. An evaporating apparatus comprising the combination of an upright casing having an outlet at its upper end and an opening in its side wall, a door detachably secured over said opening, partitions detachably mounted within the casing and forming a central ebullition compartment and separating compartments at the sides of the ebullition compartment and communicating therewith at its upper and lower ends, two manifolds mounted upon the door one above the other and projecting inwardly from the door into the ebullition compartment, a plurality of coils of heating pipes disposed vertically within the ebullition compartment and connected at their ends to said manifolds, the door with the manifolds and heating pipes mounted thereon being removable from the casing, a deflector mounted within the casing and above the manifolds for deflecting vapor rising within the ebullition compartment outwardly to the separating compartments-and a bafile' mounted {Within the casing between the deflector and said outlet; substantially as described.

45 1 116 improvement in evaporating apparatus for-obtaining purified liquid, which comprises a containing shell, having an ebullition compartment and a separating compartment communicating with the upper and-lowermost portions of said ebullition compartment, a door closing an aperture in' said shell leading to said ebullition compartment, manifolds mounted on said door and projecting within said ebullition compartment, heating coils attached to opposite sides of said manifolds by quick-detachable joints, and a laterally deflecting bafiie located within said shell above said ebullition compartment; substantially as described.

5. The improvement in evaporating apparatus for obtaining purified liquid, which comprises a containing shell having an ebullition compartment and a separating compartment communicating with the upper and lowermost portions of said ebullition compartment, a door closing an aperture in said shell leading to said ebullition compartment, manifolds and heating coils mounted on said door and projecting within said ebullition compartment,rails mounted within said ebullition compartment. rollers mounted upon the inner and upper end of the structure comprising the manifolds, heating coils and door and adapted to rest 'upon said rails, a roller mounted upon the lower end of said door and adapted to rest upon the floor, and a laterally deflecting bafiie located Within said shell above said ebullition compartment; substantially as described. i

6. lihe improvement in evaporating apparatus for obtaining purified liquid, which comprises a containing shell, a door closing an aperture in said shell; a heating coil structure secured to said door and project-,, ing within said shell, rails within said shell,

' rollers mounted upon the inner and upper portion of said heating coil structure and adapted to rest upon said rails to support the inner endrof said structure, and a caster mounted upon the outer side of said door and adapted to roll upon the floor upon which said shell rests and support the outer end of said structureysubstantially as described.

7. The improved evaporating apparatus for obtaining purified liquid, which com prises 2']. containing shell, a door closing an aperture in said shell, manifolds secured to and carried by said door, the outwardly projecting ends of said manifolds being extended beyond the edge of said door and backwardly and terminating in flanges lying in planes substantially parallel to the heating coils connected between said manifolds {substantially as described.

8. The improvement in evaporating apparatus for obtaining purified liquid, which comprises a containing shell, a door closing an aperture in said shell, a heating pipe structure secured to said door and projecting within said shell, a supporting roller for said structure within said shell and 11.

second supporting roll forsaid structure 10 outside said shell; substantially as described.

In testimony whereof I afiix my signature, in presence of two Witnesses.

' REUBEN R. ROW. \Vitnesses: M. R. COLBY, G. L. THOMTORS. 

